booleanIntersects returns false for LineStrings that share a point

I'm using turf version 6.5.0.

booleanIntersects returns false for the following 2 LineStrings although they share a point:

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "LineString",
        "coordinates": [
          [
            13.3930069,
            52.5275117
          ],
          [
            13.3928956,
            52.5274816
          ]
        ]
      }
    },
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "LineString",
        "coordinates": [
          [
            13.392838775,
            52.527573275
          ],
          [
            13.3928956,
            52.5274816
          ]
        ]
      }
    }
  ]
}

Gist: http://geojson.io/#id=gist:mschilde/fc89dc38b2fd81d1e80add4fa93f34c9&map=22/52.52753/13.39292

Other touching LineStrings that also share a point are treated as intersecting and booleanIntersects returns true, e.g.

[
   {
      "type":"Feature",
      "properties":{ },
      "geometry":{
         "type":"LineString",
         "coordinates":[
            [
               13.3930069,
               52.5275117
            ],
            [
               13.3928956,
               52.5274816
            ]
         ]
      }
   },
   {
      "type":"Feature",
      "properties":{},
      "geometry":{
         "type":"LineString",
         "coordinates":[
            [
               13.3927809,
               52.5274499
            ],
            [
               13.3928956,
               52.5274816
            ]
         ]
      }
   }
]

Start at the booleanIntersects implementation and reproduce the issue with the supplied LineString coordinates, comparing them with the second example that returns true. The fix is complete when LineStrings sharing the reported endpoint are recognized as intersecting and the existing behavior is preserved for the comparison case.